Dow futures are down 0.1 percent at 12,401, while S&P 500 futures are down 0.2 percent at 1,290. Nasdaq futures are up a point at 2380.
The weakness at J.P. Morgan opened the season for financial earnings on a sour note. Its shares fell in premarket trading.
Surprisingly strong bond auctions in Spain and Italy on Thursday reinforced hopes that policymakers may be getting a grip on Europe's debt crisis after months of indecision. European and Asian markets mostly rose.
Though a pickup in the stream of U.S. earnings will steer markets over the coming days, Europe's debt crisis is likely to remain the main focus.